Molekula
Sulfamic acid
Supplying 4,500+ customers in over 80 countries
ISO 9001:2015 & ISO 14001:2015 certified · Supplying laboratories and industry since 2000 · Listed pack sizes are a starting point — we manufacture, source and repack to the quantity you need
Sulfamic acid is a white crystalline solid used as a cleaning agent, descaler, and in the synthesis of other chemicals. It also serves as a reference standard in acid-base titrations, a chlorine stabilizer for swimming pools and cooling towers, and a catalyst for urea-formaldehyde resins. It is effective in removing scale and rust from metal surfaces and is commonly used in industrial and laboratory settings. Available in powder form with a molecular weight of 97.09 g/mol, it has a CAS number of 5329-14-6 and a signal word of Warning. Store at ambient temperatures. Molekula supplies Sulfamic acid from research to bulk quantities with full documentation and ISO 9001:2015 traceability.
Example image for illustration only. Other packaging and pack sizes are available.
Often bought together
Pricing & pack sizes
These pack sizes aren't a limit. Molekula manufactures, sources and repacks to order — if you need 500 kg and only see 1 kg listed, . We quote from grams to multi-tonne.
Need a different size? Add the nearest pack and change the size in your basket — we price it at the same rate per unit.
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100 g — £33.70 per pack ex VAT · £40.44 inc. VAT
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500 g — £90.20 per pack ex VAT · £108.24 inc. VAT
Need a different quantity or pack?
Tell us how much you need and when — drums, IBCs, sacks or a one-off bulk lot. We'll manufacture or source it and come back with a price.
Prices exclude VAT/sales tax and shipping.
Specifications
| Property | Value |
|---|---|
| Appearance | White powder |
| Water | <0.1% |
| Heavy metals | <10ppm |
| Assay | >99.5% |
| Iron (Fe) | <10ppm |
| Sulphates (SO4)(2-) | <150ppm |
Storage & handling
| Property | Value |
|---|---|
| Storage Temperature | Ambient |
| Transport Class | 8 |
| Packing Group | III |
| Acidity | Acid |
Literature values
Published physical properties of the substance, not batch specifications.
| Property | Value |
|---|---|
| Appearance | Orthorhombic crystals |
| Odour | Odorless |
| Melting Point | 205 °C |
| Density | 2.1 (relative, water = 1) |
Source: PubChem CID 5987 (HSDB, ICSC)
Identification
| Property | Value |
|---|---|
| SKU | 17110782 |
| CAS Number | 5329-14-6 |
| IUPAC Name | sulfamic acid |
| EC Number | 226-218-8 |
| Molecular Formula | H3NO3S |
| Molecular Weight | 97.09 |
| Exact Mass | 96.9834 |
| SMILES | NS(=O)(=O)O |
| InChIKey | IIACRCGMVDHOTQ-UHFFFAOYSA-N |
| InChI | InChI=1S/H3NO3S/c1-5(2,3)4/h(H3,1,2,3,4) |
| PubChem CID | 5987 |
| UN Number | UN2967 |
| REACH Code | Y110 |
| Tariff Code | 28111980 |
Safety & GHS
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Health Hazard
GHS07
Hazard statements
- H315 Causes skin irritation
- H319 Causes serious eye irritation
- H412 Harmful to aquatic life with long lasting effects
Precautionary statements
- P273 Avoid release to the environment
- P280 Wear protective gloves/protective clothing/eye protection/face protection
- P302+352 IF ON SKIN: Wash with soap and water
- P305+351+338 IF IN EYES: Rinse with water for several minutes. Remove contact lenses if present and easy to do. Continue rinsing
- P332+313 IF skin irritation occurs: Get medical advice/attention
- P337+313 If eye irritation persists get medical advice/attention
Documents
Safety Data Sheets (SDS)
Available in English, French, German, Italian, Spanish.
Certificate of Analysis (CoA) by batch
Enter a lot or batch number to retrieve the CoA for that specific batch. We can generate one from spec data if no PDF is on file.
Synonyms
- Amidosulfonic acid
- Amidosulfuric acid
- Aminosulfonic acid
- Aminosulfuric acid
- Imidosulfonic acid
- Jumbo
- Kyselina sulfaminova
- Sulfamidic acid
- Sulfaminic acid
- Sulphamic acid
Frequently asked questions
What is sulfamic acid used for?
Sulfamic acid is commonly used as a cleaning agent for removing scale and rust from metal surfaces, and as a component in industrial descaling and acid cleaning formulations.
What is the chemical formula and molecular weight of sulfamic acid?
The chemical formula is H3NO3S and the molecular weight is 97.09 g/mol.
How should sulfamic acid be stored?
Sulfamic acid should be stored at ambient temperature, in a dry, well-ventilated area, away from incompatible materials.
What grade of sulfamic acid does Molekula supply?
Molekula supplies sulfamic acid in technical grade, suitable for industrial applications.
Can Molekula supply sulfamic acid in bulk?
Yes, Molekula can supply sulfamic acid in bulk quantities; please contact our sales team for pricing and availability.
What documentation comes with a sulfamic acid order?
Each order includes a Certificate of Analysis (CoA) and Safety Data Sheet (SDS) upon request.
Ready to order or need a custom pack?
Tell us the product, grade, and quantity — Molekula usually responds within one working day with pricing and lead time.